The pair made contact as Mercedes driver Hamilton - who had started at the back after his qualifying crash - made his way through the pack. Hamilton later reported that he thought Button was giving him room to go through, and apologised to his former McLaren team-mate.
After the race Button was clearly frustrated, stating that he was taking a regularly-used line through the corner rather than allowing Hamilton to pass.
“Why would we let anyone through? A lot of drivers do that line to get a good exit from the corner,” said Button.
“The problem with Lewis is he expected me to let him past, but I don't think I am the only person he drove into. Strange, when the car is so much quicker, you wouldn't have thought he would get into such fights, but there you go.”
However Button later backed down from his criticism on Twitter, saying he had ‘overreacted’ and that he could see Hamilton’s point of view.
After watching the race back think I overreacted with my feelings about Lewis's move. I can understand why he thought I was giving him room.— Jenson Button (@JensonButton) July 20, 2014
Amazed we both got around the corner!! F1 put on a great show today and long may it continue! pic.twitter.com/zP3bK9Ghx6— Jenson Button (@JensonButton) July 20, 2014
Hamilton went on to finish third while Button took eighth at the chequered flag.